The reading chamber / Robert Kirkbride.

Eight laminated leaves attached by wire to a central, pivoting metal hinge, which is, in turn, attached to copper tubes at top and bottom, which are fixed to ceiling and floor, allowing the book, suspended at approximately eye-level for a standing reader, to be circumnavigated by spinning the text-pages.

Local notes:

Acquired for the Penn Libraries with assistance from the Alumni and Friends Memorial Book Fund.Penn Libraries copy is no. 0 [sic] of 11 copies.Penn Libraries copy: one laminated leaf detached from central hinge.